3. Encyclopedia Mythica - https://pantheon.org/ - "Encyclopedia Mythica is an internet encyclopedia on mythology, folklore, and religion," with more than 10,000 articles about peoples from all over the globe.

1. http://dailysciencefiction.com - A new SF & F short story every weekday, with the past stories archived online. Very variable quality, from the purely amateurish to the multiply-published professional.

2. https://www.baen.com/allbooks/category/index/id/2012 - The Baen Free Library currently has 70 free books, including novels, short story collections, and non-fiction articles. The titles in the library vary over time, but as they are downloadable, one need not miss out on any that one wishes to read.

5. http://ebooks.thefifthimperium.com/Gutenberg%20SF%20200703%20CD/Gutenberg%20SF%20200703/ - This is a curated collection from Project Gutenberg's Science Fiction Bookshelf, winnowing out some of the dross. 165 books (currently) have made the cut. There are some good books excluded, but not many, I would say. (It was originally set up for one to download the entire set onto a CD and it even provides the CD label!). They can be downloaded in a single chunk, if one wishes to.

8a. http://sf-encyclopedia.uk/fe.php - The Encyclopedia of Fantasy never got the extensive revisions that SFE did. It has been recreated online, but is far less comprehensive, more's the pity.

9. http://youngpeoplereadoldsff.com/ - Young People Read Old SFF has some relatively young readers given some old, ostensibly good, Science Fiction and Fantasy to read. This has their reactions to it.

Other free literary sites of merit:

Short Stories Online | Examples, Database, Directory, and Lists - http://www.shortstoryguide.com/ - Just what it sounds like. "Short Story Guide is designed to help middle school / high school teachers, students, and reading lovers find the right story and allow them to easily read online short stories free, where possible. Short stories are categorized by subject, theme, place, author and type." There are divisions for middle school, high school, and college students, as well. Dozens, perhaps hundreds, of short stories are linked in a few dozen genres and sub-genres. There are stories mentioned without links, as well, when a particular story deserves mention even though the author had no resource for it.

Decameron Web | The Project - http://www.brown.edu/Departments/Italian_Studies/dweb/the_project/ - This is a brilliant website that examines Boccaccio's Decameron: "Boccaccio's collection of 100 tales told by ten young Florentines over ten days as a game and pass time while in flight from the devastating plague of 1348. The Decameron defined the standard of Italian prose narrative for four centuries and deeply influenced Renaissance drama. It is also a goldmine for information about everyday life in the late Middle Ages." Beyond "just" the stories themselves, website looks at the literature, history, religion, arts, and society of the time, as well as the plague itself.

Parody and Satire - F07 - https://1drv.ms/f/s!AjHB5DoRYLJEixrEk9N-lR59zJcw - This is my personalcollection of parody and satire material from various sources on the web and off. It's far faster to share this way than to pick through it, but I would note within it, in particular, A Parody Anthology and A Satire Anthology, both collected/edited by Carolyn Wells, a prolific and diverse author and poet from the late 19th to mid 20th centuries.

TIED Projects - https://tied.verbix.com/project/index.html - The Indo-European Database (TIED) is an inelegant, but enormously information-dense collection about languages, words, cultures, and history. Word of the Day, Language of the Day, Phonetics, Migrations, Scripts, and more.

Alan Lomax Archive - http://research.culturalequity.org/audio-guide.jsp - "Alan Lomax was an American ethnomusicologist, best known for his numerous field recordings of folk music of the 20th century. He was also a musician himself, as well as a folklorist, archivist, writer, scholar, political activist, oral historian, and film-maker." (Wikipedia) This site has thousands of the songs and interviews he recorded, ready to be shared as he envisioned (before the internet was close to being a reaility).

Going up a level to CulturealEquity.org will give you other interesting items, but it wasn't my favorite, so you get this link. :-)